Gaseous fuel



UNITED STATES "PATENT OFFICE.

GASEOUS FUEL.

1,404,236. Specification of Letter-shunt- Patented Jan. 24, 1922. No Drawing. Application filed December 26, 1919. Serial No. 347,463. To all whom it may concern. as a type, the average analysis of the same Be it known that we, (1) JAMES H. Ross, is as follows: (2) JOHN HAnRrs,'citizens of the United CO 2 6 States, residing at (1) Edgeworth, (2) Lake- In 2 3", wood. in the county of (1) Allegheny, g g S 2 (2) Cuyahoga, and State of (1) Pennsylo vania, (2) Ohio, have invented a certain new Kiri n 3 6 and useful Improvement in Gaseous Fuel, one of which the following is a full, clear, and w fgg 3 ex iclt description. 1 f 1 i; T 8' 11S invention re ates to gaseous uc "T which is particularly useful for the purg of Ofkygen fi gi fol Com' 1 09 65 pose of producing a concentrated flame hav- 1S Ion O a 0 has ing a high fiame temperature and capable of According to Richards on Metallurgical doing extremely fine work in the cutting of Calculations, published in 1908, and with the metals. A flame of this character is requibyproduct coke-oven gas'of approximately site for use in blowpipes with carbographs the analysis above set forth, the flame temand for the cutting of steel such as is used 'perature produced by the combustion of the in die work and for the trimming of the above described gaseous mixture will be edges of armor plate as at present constiabout 3200 0., and the variations in the tuted. percentages of the said gases will cause Ve obtain a gas having the above desirapproximately the following variations in able characteristics by mixing with hydrothe net B. T. U. per cu. ft. of mixture and gen. as a combustible base, methane and byin the cubic feet of oxygen required for the product coke-oven gas in the proportions of combustion of a cubic foot of such mixture: from Qy/ to 12%% by volume each of such No. 1 mixture 95% H. .with 2%% each of methane and. by-product coke-oven gas to methaneand by-product coke-oven gas; net the hydrogen constituent. The by-product B. T. U.s 317; cu. ft. of oxygen .550. coke-oven gas and the methane have No. 2 mixture H. with 12%%'each nearly the same flame temperature as of methane and by-product coke-oven gas; the hydrogen, and the temperature pronet 13. T. U s 411; cu. ft. of oxygen .750. duced by the combustion of the com- Having thus described our invention, bined or mixed gases is nearly 3200 C. what we claim is: 4 The by-product coke oven gas is readily ob- 1. A gas for cutting, welding and heating tainable in steel mills and the methane is purposes consisting of a mixture of bythe main constituent of natural gas. The product coke gas and methane with hydrogaseous mixture produces within the burngen in the proportions of from 24 to 12%% ing hydrogen a visible cone which enables by volume of each of by-product coke gas the operator to adjust the proportions of the. and methane to hydrogen. gases and of the combustion-supporting oxy- 2. A gas for cutting, welding and heating gen as may be necessary. as well as to apply purposes consisting of a mixture of bythe flame in the most advantageous manner product coke-oven gas and methane with to the work; Both the volume of the flame hydrogen in proportions not substantially and the heat units produced by the combusless than 5% by volume of such combined tion of the mixture are greater than are gases to the hydrogen and not materially produced by the combustion of hydrogen more than 25% of such combined gases to alone: and, as pointed out, the gaseous mixthe hydrogen, the by-product coke-oven gas ture is particularly well adapted for-the andmethane being present, in the proporcutting of metal with a minimum of slagtions of at least 24 each in such mixture. ging and with an extremely narrow slot, Intestimony whereof, we hereunto aflix which results in the fineness of cutting reour signatures.

- JAMES R. ROSE.

ferred to hereinbefore.

Taking Koppers byproduct coke oven gas JOHN HARRIS. 

